We laughed and flirted for hours, then he told my best friend's boyfriend that I was "alright"?

So, my best friend and her boyfriend set up a blind date for me and his good friend. Everything seemed to be going good all day. We went to a local festival and we seemed to be getting along great. We were laughing and flirting and he kept looking at me like genuinely liked me. When we left he didn't even say goodbye to my best friend, the girl he's been hitting on the last month. Later she called her boyfriend to see if he said anything about the date and he told her that when they got in their car her boyfriend said "we kind of left you two alone." And the guy said "yeah. She's alright." What does that mean? He acted like he was into me the entire time and then he said that...